5559.05
County road improvement.

When the board of county commissioners has determined that any
road, street, or alley, or portion thereof shall be improved as provided for in
sections 5559.02 to
5559.16 , inclusive, of the Revised
Code, such board shall, by a majority vote, determine the route and termini of
such improvement, the kind and extent thereof, and at the same time order the
county engineer to make such surveys, plans, profiles, cross sections,
estimates, and specifications as are required for such improvement.

Only such storm sewers may be included in plans as are needed
solely for the drainage of the street to be improved and of the lots and lands
to be specially assessed for the improvement. The board may order the engineer
to make alternate surveys, plans, profiles, cross sections, estimates, and
specifications, providing therein for different width[s] of roadway, different
materials, or other similar variations, and approve any of such alternate
surveys, plans, profiles, cross sections, estimates, and specifications.